[libc][docs] Add fcntl.h POSIX header documentation (#188822)
Add YAML documentation for `fcntl.h` listing all functions and macros as
defined in POSIX.1-2024 (IEEE Std 1003.1-2024).
**Functions (6):** creat, fcntl, open, openat, posix_fadvise,
posix_fallocate
**Macros (51):** O_RDONLY, O_WRONLY, O_RDWR, O_APPEND, O_CREAT, O_EXCL,
O_TRUNC, F_DUPFD, F_GETFD, F_SETFD, F_GETFL, F_SETFL, AT_FDCWD,
POSIX_FADV_*, and more.
Part of #122006
diff --git a/libc/docs/CMakeLists.txt b/libc/docs/CMakeLists.txt
index 272eb4a..b739c49 100644
--- a/libc/docs/CMakeLists.txt
+++ b/libc/docs/CMakeLists.txt
@@ -47,6 +47,7 @@
dirent
endian
errno
+ fcntl
fenv
float
glob
diff --git a/libc/docs/headers/index.rst b/libc/docs/headers/index.rst
index 25ab044..b77a54f 100644
--- a/libc/docs/headers/index.rst
+++ b/libc/docs/headers/index.rst
@@ -13,6 +13,7 @@
dirent
endian
errno
+ fcntl
fenv
float
glob
diff --git a/libc/utils/docgen/fcntl.yaml b/libc/utils/docgen/fcntl.yaml
new file mode 100644
index 0000000..7a6b656
--- /dev/null
+++ b/libc/utils/docgen/fcntl.yaml
@@ -0,0 +1,121 @@
+functions:
+ creat:
+ in-latest-posix: ''
+ fcntl:
+ in-latest-posix: ''
+ open:
+ in-latest-posix: ''
+ openat:
+ in-latest-posix: ''
+ posix_fadvise:
+ in-latest-posix: ''
+ posix_fallocate:
+ in-latest-posix: ''
+
+macros:
+ AT_EACCESS:
+ in-latest-posix: ''
+ AT_FDCWD:
+ in-latest-posix: ''
+ AT_REMOVEDIR:
+ in-latest-posix: ''
+ AT_SYMLINK_FOLLOW:
+ in-latest-posix: ''
+ AT_SYMLINK_NOFOLLOW:
+ in-latest-posix: ''
+ FD_CLOEXEC:
+ in-latest-posix: ''
+ FD_CLOFORK:
+ in-latest-posix: ''
+ F_DUPFD:
+ in-latest-posix: ''
+ F_DUPFD_CLOEXEC:
+ in-latest-posix: ''
+ F_DUPFD_CLOFORK:
+ in-latest-posix: ''
+ F_GETFD:
+ in-latest-posix: ''
+ F_GETFL:
+ in-latest-posix: ''
+ F_GETLK:
+ in-latest-posix: ''
+ F_GETOWN:
+ in-latest-posix: ''
+ F_OFD_GETLK:
+ in-latest-posix: ''
+ F_OFD_SETLK:
+ in-latest-posix: ''
+ F_OFD_SETLKW:
+ in-latest-posix: ''
+ F_OWNER_PGRP:
+ in-latest-posix: ''
+ F_OWNER_PID:
+ in-latest-posix: ''
+ F_RDLCK:
+ in-latest-posix: ''
+ F_SETFD:
+ in-latest-posix: ''
+ F_SETFL:
+ in-latest-posix: ''
+ F_SETLK:
+ in-latest-posix: ''
+ F_SETLKW:
+ in-latest-posix: ''
+ F_SETOWN:
+ in-latest-posix: ''
+ F_UNLCK:
+ in-latest-posix: ''
+ F_WRLCK:
+ in-latest-posix: ''
+ O_ACCMODE:
+ in-latest-posix: ''
+ O_APPEND:
+ in-latest-posix: ''
+ O_CLOEXEC:
+ in-latest-posix: ''
+ O_CLOFORK:
+ in-latest-posix: ''
+ O_CREAT:
+ in-latest-posix: ''
+ O_DIRECTORY:
+ in-latest-posix: ''
+ O_DSYNC:
+ in-latest-posix: ''
+ O_EXCL:
+ in-latest-posix: ''
+ O_EXEC:
+ in-latest-posix: ''
+ O_NOCTTY:
+ in-latest-posix: ''
+ O_NOFOLLOW:
+ in-latest-posix: ''
+ O_NONBLOCK:
+ in-latest-posix: ''
+ O_RDONLY:
+ in-latest-posix: ''
+ O_RDWR:
+ in-latest-posix: ''
+ O_RSYNC:
+ in-latest-posix: ''
+ O_SEARCH:
+ in-latest-posix: ''
+ O_SYNC:
+ in-latest-posix: ''
+ O_TRUNC:
+ in-latest-posix: ''
+ O_TTY_INIT:
+ in-latest-posix: ''
+ O_WRONLY:
+ in-latest-posix: ''
+ POSIX_FADV_DONTNEED:
+ in-latest-posix: ''
+ POSIX_FADV_NORMAL:
+ in-latest-posix: ''
+ POSIX_FADV_NOREUSE:
+ in-latest-posix: ''
+ POSIX_FADV_RANDOM:
+ in-latest-posix: ''
+ POSIX_FADV_SEQUENTIAL:
+ in-latest-posix: ''
+ POSIX_FADV_WILLNEED:
+ in-latest-posix: ''
